According to Carnival's schedule for a six-day cruise, the Dream left Galveston last Sunday, July 20. By Wednesday, the ship was traveling between Belize and Cozumel, Mexico, when multiple passengers reported hearing alarms go off in the middle of the night.

The FBI’s Houston field office is “aware of an incident” that took place around July 23 aboard the Carnival Dream, the agency said.

HOUSTON, Texas -- An investigation is underway after officials say someone died on a Carnival Cruise cruise ship last week. FBI Houston confirmed the incident occurred last Wednesday, July 23, on the cruise ship, but did not release additional information about what happened.